Homogeneous synthesis of long-chain fatty acid esters of cellulose by using co-reagent

哈丽丹·买买提

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Homogeneous synthesis of long-chain fatty acid esters of cellulose by using co-reagent

更新时间：2025-12-10

- Homogeneous synthesis of long-chain fatty acid esters of cellulose by using co-reagent
- CIESC Journal Issue 11, (2010)
- 作者机构：
  
  新疆大学化学化工学院
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Online First：05 November 2010，
  
  Published：05 November 2010
- 稿件说明：
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哈丽丹·买买提. Homogeneous synthesis of long-chain fatty acid esters of cellulose by using co-reagent[J]. CIESC Journal, 2010, (11).
DOI：

哈丽丹·买买提. Homogeneous synthesis of long-chain fatty acid esters of cellulose by using co-reagent[J]. CIESC Journal, 2010, (11). DOI：

摘要

在纤维素LiCl/N

N-二甲基乙酰胺（DMAc）均相溶液体系中，以对甲苯磺酰氯（TosCl）为共反应剂，原位活化脂肪酸（RCOOH），合成了长链脂肪酸纤维素酯。采用红外光谱、核磁共振谱、X射线衍射、热重等分析手段对产品进行了表征。考察了脂肪酸含碳原子个数、反应物配比、反应温度、反应时间等酯化条件对产品取代度的影响。结果表明：当反应物纤维素葡萄糖苷（AGU）∶RCOOH∶TosCl=1∶3∶3

反应温度为85℃，反应时间为24 h时，产品取代度最高，且随着长链脂肪酸碳原子数目的增加

Abstract

Long-chain fatty acid esters of cellulose were synthesized in cellulose LiCl/DMAc（lithium chloride/N

N-dimethylacetamide）homogenous solution system by using p-toluenesulfonyl chloride as co-reaction reagent，and in situ activation of the long-chain fatty acid. The structure and properties of long-chain fatty acid esters of cellulose were characterized by means of IR

1H NMR

XRD

etc. The esterification conditions were investigated. The results showed that the long-chain fatty acid esters of cellulose with the highest degree of substitution（DS）could be prepared when the esterification was carried out at 85℃ for 24 h with the mole ratios of repeat units of cellulose（AGU）∶long-chain fatty acid (RCOOH)∶ p-toluenesulfonyl chloride (TosCl) =1∶3∶3

and the degree of esterification decreased with the growth of the number of carbon atoms of long-chain fatty acid. TG analysis revealed that esterification weakened the inter-molecular and intra-molecular forces of cellulose

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